Hi Shivam,
There are many reasons for high latency in the VSP E590 storage array, such as MP or Drive or cache bottleneck issues.
For the detailed analysis, we need performance export data as well as a detailed dump and it is not possible in the community to upload such large files.
To address this concern in a clear picture, it is recommended to open a case with Hitachi Vantara support, where a qualified Hitachi engineer can review the detailed dump and performance export data to conduct a thorough analysis of the resource metrics.
Thanks!